While still a teenager, Patrick Leigh Fermor made his way across Europe, as recounted in his classic memoirs, A Time of Gifts and Between the Woods and the Water. During World War II, he fought with local partisans against the Nazi occupiers of Crete. But in A Time to Keep Silence, Leigh Fermor writes about a more inward journey, describing his several sojourns in some of Europe's oldest and most venerable monasteries. He stays at the Abbey of St. Wandrille, a great repository of art and learning; at Solesmes, famous for its revival of Gregorian chant; and at the deeply...